/Engine/Source/Runtime/Engine/Classes/Particles/SubUVAnimation.h
static [FString](API\Runtime\Core\Containers\FString) GetDDCKeyString ( const [FGuid](API\Runtime\Core\Misc\FGuid) & StateId, int32 SizeX, int32 SizeY, int32 Mode, float AlphaThreshold, int32 OpacitySourceMode )